(9) Secure the piledriver hammer (rear drum)
cable to the eye on the top of the hammer, with a cable
wedge, pin, and cotter pins, and raise the hammer into
the leads.
(10) Swing the boom into position over the pile
cap. Lower the hammer and secure the pile cap to the
hammer with the cable sling. Raise the hammer and lift
the cap into the leads.
(11) Refer to figure 2-17 and install the catwalk
to the foot of the boom and the leads; adjust the catwalk
so the leads are vertical, and bolt the catwalk sections
together.
c. Removing the Piledriver.
(1) Lower the hammer enough to allow slack
in the cable sling. Remove the sling and move the
piledriver clear of the cap.
(2) Remove the bolts and nuts securing the
catwalk sections. Raise the boom enough to clear the
hammer and lower the hammer to the ground. Remove
the cable from the hammer.
(3) Remove the bolts securing the catwalk to
the leads and the boom, and lower the catwalk to the
ground.
(4) Lower the leads to the ground and slowly
drive the carrier forward. At the same time, lower the
boom to the wood blocks.
(5) Remove the piledriver lead adapters and
leads as shown in figure 2-16 and figure 2-17. Secure
the pile lead adapters to the leads.
(6) Remove the boom hoist cable and boom
2-8. Backhoe Conversion
Note.
It is the operator's responsibility to
Figure 2-18. Piledriver reeving diagram.
request the services of organizational maintenance
when
converting
to
backhoe
operation.
(5) Install the pile hoist cable in the drum
Organizational
maintenance
is
specifically
socket in the front cable drum and secure with the cable
responsible for proper installation and removal of
wedge. Lead the pile hoist cable from the drum out over
the backhoe boom and stick.
and will assist
the right boom point sheave.
operators in proper installation of cables and other
(6) Install a thimble and the pile hoist cable
accessory items.
through the pile hook and secure with three cable
a. General. The truck crane may be converted to
clamps.
backhoe operation by installing the backhoe front-end
(7) Back the truck crane slowly toward the
attachment. The following components are necessary
piledriver leads, at the same time hoisting the boom until
for the equipment conversion; backhoe boom, dipper
the leads are vertical.
handle, backhoe bucket, pitch brace, drag padlock
(8) Raise the boom until the bottom of the
sheave, hoist padlock sheave, gantry mast, boom foot
leads clear the hammer, and position the leads over the
pins, boom hoist cable, pull cable, and mast suspension
hammer.
cable.
b. Installation.
Note. To install the backhoe boom, a cribbing will be
necessary to support the boom in a horizontal position.
The cribbing must be high enough to bring the boom into
position with the boom foot lugs on the revolving frame.
as shown in figure 2-19.
2-13
